Physics MCQs

In ball and bowl system the mean position is at .....?

Ball and bowl system Is an example of .......?

In ball and bowl system the ...... force act as restoring force?

Kinetic energy is ...... at extreme position?

The rato of exerted force to displacement is called ......?

The speed of mass...... at it moves towards the extreme position?

Due to ....... the mass does not stop at the mean position but continues its motion?

The mugnitue of the restoring force........with the distance from the mean position?

A ......force always pushes or pulls the object performing oscillatory motion towards the mean position?

Force exerted on the body is always directed....... the displacement of mass?

The value of spring constant in case of soft springs is?

The value of k depends upon ........ of spring?

In F=kx, k indicates?

The maximum potential energy of a vibrating mass attached to a spring is at?

The force applied on a body is directly proportional to the change in length. This is?

Motion of mass attached to spring is an example of..... motion?

Vibration is also known as ?

The particles of the solid can vibrate about their......?

A body is said to be....... if it moves back and forth about a point?

A spider detects its prey due to....... produced in the web?

Sound is produced by ......?

The study of sound is called?

The speed of sound in solid is about ...... times that in gases?

For hearing distined echoes, the minimum distance of obstacle from source of source of sound must be ?

The sensation of sound persists in our brain about ......?

By using an......we can see sound wave?

The amplitude of 100 B sound is ..... ?

1 bell is equal to ?

Voice of Child is ..... ?

The loudness of sound is directly proportional to logarithm of intensity, this Law is called .......?

Intensity is a ...... quantity ?

The intensity of sound depends on the ...... of sound?

Frequency of silent whistle Lies between ......?

...... is the characteristic of sound by which we can distinguish between a shrill and a grave sound?

Loudness of sound depends on ?

Distance between two consecutive compressions and rarefactions Is the .......of sound wave.

Pitch of sound depends on ?

Characteristic by which We can distinguish between two sounds of same loudness and pitch is called .......?

Sound is ...... Wave ?

Sound can travel only in presence of ?

Plank suggested that light consists of small packets of energy called?

Lens thick at the centre but thin at the edges is?

The lens which causes incident parallel rays to converge at a point is?

Lenses are used in optical devices?

In lens number of curved surfaces at least?

The distance between the optical centre and the principal focus is?

For a concave lens, the parallel rays appear to come from a point behind the lens is called?

The line passing through the two centres of curvatures of the lens is called?

The distance from the pole to the principal focus measured along the principal axis is?

A line joining centre of curvature and pole of the spherical mirror is?

Vertex is the midpoint of the curved surface of spherical mirror is also called?

Which statement is correct about convex mirror?

A spherical mirror whose outer curved surfaces reflecting is called?

Which statement is incorrect about concave mirror?

In concave mirror the surface is reflecting?

The rough surfaces of object reflect the rays of light in many directions is called?

Regular reflection is reflection by the?

The incident ray, the normal, and the reflected ray at the point of incidence all lie in the?

The angle between the normal and the reflected ray is called angle of?

The angle between incident ray and normal N is?

Parallel plate capacitor consist of two metal plates separated by?

SI unit of capacitance?

In order to store the charge a device is used which is called?

.........at a point in an electric field is equal to amount of work done in bringing unit positive charge from infinity to that point?

Electric field is strong when liens are?

Work done in bringing a unit positive charge from infinity to that point in an electric field is called?

Electric field intensity is a vector quantity and its direction is?

SI unit of electric field intensity is?

If the distance between two charges is doubled, the electric force between them will become?

If the distance between the two charged bodies is halved, the force between them becomes?

The value of Coulomb’s constant K depends upon?

Electroscope can be charge by the process?

The spacing between the field lines shows the?

Only....... type charges exist?

SI unit of electric Charge is?

Electric charges can be produced by rubbing a neutral body with?

If we run a plastic comb through hair and then bring it near shell pieces of paper. The comb..........?

When an insulating rod is charged negatively, this is due to?

An insulating rod is charged positively by rubbing. This is due to?

Study of charges at rest is called?

If we increase the temperature of a conductor, its resistance will?

The property of a substance which opposes the flow of current through it is called?

The graphical representation of Ohm’s law is?

Thermistor is?

In order to measure the current in a circuit, ammeter should be connected?

The resistance of an ammeter should be?

A resistance which is connected with the galvanometer in order to convert it into ammeter should have?

A galvanometer is a very?

If the needle of galvanometer shows some deflection, it would indicate the?

The electronic current Is due to the flow of?

One coulomb per second is equal to?

Free electrons are?

In liquids and gases, the current is due to the motion of?

The current through a metallic conductor is due to the motion of?

Energy is produced to transfer the electrons from positive terminal of the battery to the negative terminal by the?

The equivalent current of positive charges which flows through a conductor is known as?

The SI unit of electric current is?

The rate of flow of electric charge through any cross-sectional area is called?

In electrolyte, current is produced due to the flow of?

In metals, current is produced only due to the flow of?

The value of induced emf is directly proportional to the rate of change of?

Who found the direction of induced e.m.f first time?

Hold down the end of the current carrying solenoid in front of you, if the direction of current flow through this end is clockwise it would be?

Hold down the end of the current carrying solenoid in front of you, if the direction of current flow through this end is anti-clockwise it would be?

The polarity of current carrying solenoid is found by?

Lines of force in solenoid resemble the pattern of lines of force due to?

Magnetic lines of force in solenoid are?

A closely wound cylindrical coil of insulated wire is?

Magnetic field in most part of the coil is?

A Cross(x) on paper indicates that the current is directed?

A dot(.) on paper indicates that the current is directed?

If the current is flowing from top to bottom then the direction of magnetic lines of force will be?

If the current is flowing from bottom end to top then the direction of magnetic lines of force will be?

Direction of Magnetic lines of force in straight conductor is found by?

The magnetic lines of Force can be traced on cardboard by using?

The magnetic field produced in straight current carrying conductor is weaker?

The magnetic field produced in straight current carrying conductor is stronger?

When current passes through straight conductor it produce magnetic field in the form of?

Who discovered that when current passes through a conductor it produces magnetic field around it?

......... is a study of magnetic effects of current?

Circuits which convert the digital signal into analogue signals?

Which of the following are digital devices?

Electronics which provides the data in the form of maximum and minimum voltage signals?

Which of the following is an analogue device?

Those quantities whose value vary continuously or remain constant?

The quantities whose value vary in non -continuous manner are called?

Time, pressure, distance are all?

Analogue quantities are?

To find the depth of sea-beds, C.R.O is used as?

Cathode-ray oscilloscope (C.R.O) is used in many field of science for?

The screen of a cathode-ray tube consists of a thin layer of?

Electron gun has an electrode for controlling the flow of electron in the beam?

A component of cathode-ray oscilloscope (C.R.O) is?

The degree of deflection of electrons from their original direction Is proportional to?

Electron gun Is used to Investigate the properties of?

For thermionic emission typical values of voltage and current used are?

Metals contain large number of?

The process of emission of electrons from the hot metal surface Is called?

Cathode rays contain negatively charged particles called?

Who observed the deflection of cathode rays by both electric and magnetic fields?

The speed of sound in air is ?

The mouthpiece of telephone contains thin metal diaphragm and granules of?

The most important of hardware of computer system is?

Cell phone transmission are made with.....?

Major Components of CBIS are?

Telephones sent voice in the form of?

Alexander Graham Bell in 1876 made a ?

The essential part of any communication system is ?

In telephone, information is sent in the form of signals through?

Who design and operate the software and feed input data, build the hardware for the smooth running of any CBIS?

Which refers to computer programs and the manuals that support them?

Which are facts that are used by programs to produce useful information?

Which technology is used in mobile phone?

Which technology is used in videophone?

The transfer of information from one place to another through different electronic and optical equipment is?

In computer terminology, processed data is called?

Which is basically an electronic based system of information transmission, reception, processing and retrieval?

The method used to communicate information to far off places instantly is called?

The term refers to machinery in computer terminology is?

Supports equipments of hardware are?

Which source has shortened the distances and has brought in contact the whole I world?

Hazards of radiation for humans are?

The temperature of the centre of sun is?

When two light nuclei combine to form n heavier nucleus, this process is called?

The half -life of C-14 is?

Which compound is used for diagnosis of brain tumor?

Which compound readily accumulates in the thyroid gland and can be used for monitoring of thyroid functioning

Which are chemical compounds containing some quantity of radioisotope?

The rate of radioactive decay is proportional to the number of?

The phenomenon by which radiations split matter into positive and negative ions is called?

Gamma rays are also called?

Who accidentally discovered that uranium salt crystals emit an invisible radiation that can darken a photographic plate?

Tritium contains one proton, while protium and deuterium contains?

1sotopes of an element have the same?

In which simplest atom, nucleus has only one proton?

.........are collectively called nucleons?

Rutherford discovered that the positive charge in an atom was concentrated in a small region called?

Atoms of the element which have same number of protons but different number of neutrons are?

The total number of protons in a nucleus or total number of electrons in the orbits is?

The total number of nucleons in a nucleus is?

A nucleon is.........times heavier than electron?